Windows defender is a very dynamic and mostly used feature in Windows 10 operating system. It is used as an antivirus that will scan the computer thoroughly and fix the error issues time to time. But sometimes when you try to launch the Windows defender program, you get Windows defender error 0x8050A002 on the computer screen. Usually, you get the defender error code 0x8050A002 due to the missing or deletion of important system files associated with Windows defender. You will not be able to scan the computer after you get this error issue. In this critical situation, you should use the manual or automatic error fixing methods. For automatic fixing of the issue, you can download and install Advanced System Repair Tool.